Registro completo de metadatos
| Campo DC | Valor | Lengua/Idioma |
|---|---|---|
| dc.creator | Appignanesi, Gustavo Adrian | - |
| dc.creator | Rodriguez Fris, Jorge Ariel | - |
| dc.date | 2018-12-10T14:39:33Z | - |
| dc.date | 2018-12-10T14:39:33Z | - |
| dc.date | 2009-05 | - |
| dc.date | 2018-11-22T14:30:58Z | - |
| dc.date.accessioned | 2019-04-29T15:57:18Z | - |
| dc.date.available | 2019-04-29T15:57:18Z | - |
| dc.identifier | Appignanesi, Gustavo Adrian; Rodriguez Fris, Jorge Ariel; Space and time dynamical heterogeneity in glassy relaxation. The role of democratic clusters; IOP Publishing; Journal of Physics: Condensed Matter; 21; 20; 5-2009; 1-14 | - |
| dc.identifier | 0953-8984 | - |
| dc.identifier | http://hdl.handle.net/11336/66171 | - |
| dc.identifier | CONICET Digital | - |
| dc.identifier | CONICET | - |
| dc.identifier.uri | http://rodna.bn.gov.ar:8080/jspui/handle/bnmm/306139 | - |
| dc.description | In this work we review recent computational advances in the understanding of the relaxation<br />dynamics of supercooled glass-forming liquids. In such a supercooled regime these systems<br />experience a striking dynamical slowing down which can be rationalized in terms of the picture<br />of dynamical heterogeneities, wherein the dynamics can vary by orders of magnitude from one<br />region of the sample to another and where the sizes and timescales of such slowly relaxing<br />regions are expected to increase considerably as the temperature is decreased. We shall focus on<br />the relaxation events at a microscopic level and describe the finding of the collective motions of<br />particles responsible for the dynamical heterogeneities. In so doing, we shall demonstrate that<br />the dynamics in different regions of the system is not only heterogeneous in space but also in<br />time. In particular, we shall be interested in the events relevant to the long-time structural<br />relaxation or α relaxation. In this regard, we shall focus on the discovery of cooperatively<br />relaxing units involving the collective motion of relatively compact clusters of particles, called<br />?democratic clusters? or d-clusters. These events have been shown to trigger transitions between<br />metabasins of the potential energy landscape (collections of similar configurations or structures)<br />and to consist of the main steps in the α relaxation. Such events emerge in systems quite<br />different in nature such as simple model glass formers and supercooled amorphous water.<br />Additionally, another relevant issue in this context consists in the determination of a link<br />between structure and dynamics. In this context, we describe the relationship between the<br />d-cluster events and the constraints that the local structure poses on the relaxation dynamics,<br />thus revealing their role in reformulating structural constraints. | - |
| dc.description | Fil: Appignanesi, Gustavo Adrian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Química del Sur. Universidad Nacional del Sur. Departamento de Química. Instituto de Química del Sur; Argentina | - |
| dc.description | Fil: Rodriguez Fris, Jorge Ariel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Química del Sur. Universidad Nacional del Sur. Departamento de Química. Instituto de Química del Sur; Argentina | - |
| dc.format | application/pdf | - |
| dc.format | application/pdf | - |
| dc.format | application/pdf | - |
| dc.language | eng | - |
| dc.publisher | IOP Publishing | - |
| dc.relation | info:eu-repo/semantics/altIdentifier/doi/https://dx.doi.org/10.1088/0953-8984/21/20/203103 | - |
| dc.relation | info:eu-repo/semantics/altIdentifier/url/http://iopscience.iop.org/article/10.1088/0953-8984/21/20/203103 | - |
| dc.rights | info:eu-repo/semantics/openAccess | - |
| dc.rights | https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ | - |
| dc.source | reponame:CONICET Digital (CONICET) | - |
| dc.source | instname:Consejo Nacional de Investigaciones Científicas y Técnicas | - |
| dc.source | instacron:CONICET | - |
| dc.subject | GLASSES | - |
| dc.subject | DYNAMICSL HETEROGENEITIES | - |
| dc.subject | RELAXATION | - |
| dc.subject | GLASS TRANSITION | - |
| dc.subject | Otras Ciencias Químicas | - |
| dc.subject | Ciencias Químicas | - |
| dc.subject | CIENCIAS NATURALES Y EXACTAS | - |
| dc.title | Space and time dynamical heterogeneity in glassy relaxation. The role of democratic clusters | - |
| dc.type | info:eu-repo/semantics/article | - |
| dc.type | info:eu-repo/semantics/publishedVersion | - |
| dc.type | info:ar-repo/semantics/articulo | - |
| Aparece en las colecciones: | CONICET | |
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